Hanger-anchor.



W. E. KELLY.

HANGER ANCHOR.

APPLICATION FILED JULY 26, 1915.

1,2663%, 7 Patented Mayl l, 1918.

2 SHEETS-SHEET 1- ml z'er E Kelly W. E. KELLY. HANGER ANCHOR.

APPLICATION FILED JULY 26, 1916. I 1,266,128. Patented May 14, 1918. 2 SHEETS-SHEET 2.

Rain.

IaFFIOE.

WALTER E. KELLY, OF DETROIT, MICHIGAN.

HANGER-ANCHOR.

Specification of Letters Patent.

Patented May 14:, 1918.

Application filed July 26, 1918. Serial No. 111,447.

To all whom it may concern:

Be it known that I, WALTER E. KELLY, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented new and useful, Improvements in Hanger-Anchors, of which of the concrete is necessary; to provide a device which eliminates the use of bolts, hooks or other unsightly fastenings; and'to provide'a device which may be readily assem bled, which may be easily installed, and which is simple in structure, effective in operation, and relatively inexpensive to manufacture; and, further, to provide a device which may be retained in position when pouring or placing the concrete thereabout without the use of separate fastenings of any kind.

The above and other objects of my invention are accomplished by thestructure set forth in the accompanying drawings, in which like letters of reference indicate corresponding parts in the several views, and in which- Figure l is a perspective view of 'my improved device.

Fig. 2 is a longitudinal sectional view through my device showing the same in position in a freshly poured concrete structure and with the form still in place.

Fig. 3 is a transverse sectional view taken on line 33 of Fig. 2.

Fig. 4 is a sectional view of my device showing the manner in which the anchor rod is inserted into the shield.

Fig. 5 is a view of a blank from which my improved shield may be formed.

Referring to the drawings, 10 is a shield, which is adapted to form a cavity in the concrete structure to be formed and which may be made of any suitable shape, the same being preferably, as shown, in the form of an upwardly tapering elongated casing or wedge-shaped. The shield 10 is preferabl formed from a single piece of sheet meta a blank from which the shield may be constructed being shown in Fig. 5. The blank 10 is preferably formed from a rectangular sheet of metal by cutting out at 0 posite sides of the same V-shaped or triangu ar portions, as shown, and beveling or cutting away the corners or points to form' oblique edges 11. The laps 12 of the blank are adapted to be turned inwardly at right angles to the body of the blank on a line passing from the vertex of the triangular cut-away portion to the angle between the edges 11 and the straight edges of the blank. The blank is bent longitudinally along a line connecting the apexes of the triangular cut-away portions whereby the blank' assumes a V or wedge-shape in cross-section and the laps 12 are brought into over-lapping positions to form the ends of the shield 10.

Each of the laps 12 is provided with a slot 13 similar in form to a bayonet slot, and which extendinwardly from the oblique edges 11 of the laps 12, and curve over at their inner ends so that, after the shield is formed and in normal position. the curved portions of the slots 13 of adjacent laps 12 register, as clearly shown in Fig. 3.

The anchor rod 14 comprises a bar of any suitable material, such as steel or iron, and is made of sufficient thickness to support considerable weight. The anchor rod 14 has a straight portion 15 which is adapted to pass longitudinally through the shield, the portions of the rod which extend beyond the shield being bent upwardly and inwardly to form oblique portions 16 which extend for a considerable distance into the concrete about the shield. The outer ends 17 of the rod 14 are bent to assume a position at right angles to the straight portion 15. The vertical portions or extremities 17 of the rod are pointed as shown at 18, and extend beyond the base or open portion of the shield and therefore beyond the outer surface of concrete, so that the points 18 may be driven into the form 19 and the ends 12 of the shield are caused to overlap to a greater extent and the open ends of the slots 13 are brought into registry with each other, as clearly shown in Fig. 4. The straight portion 15 of the anchor rod 14 is then inserted into the slots 13 and forced upwardly whereby the rod 14 acts against the curved edges of the slots 13 which act as cams; the laps 12 are forced longitudinally apart, and the shield is forced back i into its normal shape.

In the use of mydevice, the torin if is set poiting hanger 20 thereon, is inserted into the shield 10' in the manner just described. The shield 10 is then placed in position upon the form 19 and the sharp extremities or points 18 of the rod are forced into the form, whereby the base or mouth of the shield 10 is maintained securely against the surface of the form, The concrete is then placed or poured about the shield, and as the anchor rod 14 is securely attached to the form 19 there is practically no danger of the shield becoming displaced during the pouring, and, furthermore, collapsing of the shield is pre vented. After the concrete is set, the form is removed and the ends or points 18 of the anchor rod, which otherwise would protrude beyond the surface of the cement are cut off, so that they are flush with the surface of the cement and thereby all unsightly protrusions, bolts and the like are eliminated.

It will be noted that my device does not weaken the concrete structure, but, on the other hand, it considerably reinforces the,

same, for it acts on the principle of a truss placing itself in tension, and the concrete directly over it in compression, thereby forming a local truss for ea'ch anchor used.

It is, of course, evident that my device is susceptible to various mechanical changes and modifications which would be within the spirit of my invention without departing from the scope of the following claims.

What I claim as new is;

1. An insert for concrete construction comprising a wedge-shaped shield having its base open externally of the wall and adapted to form a cavity in the concrete construction and having all its sides inclined from its base and toward each other, and an anchor rod extending through said shield and into the concrete, the ends of said rod being bent to assume a position substantially perpendicular to the direction of the portion of the rod passing through said shield, said ends protruding beyond the plane of the base of said shield forming integral attaching means whereby the anchor rod may be secured to a form to maintain the shield against displacement during the placing of the cement.

An insert for concrete construction,

, comprising a shield of box-like form adapted to form a cavity in the concrete con struction, and an anchor bar passing through said shield and extendin at either side of the shield inwardly an obot' the cement.

3. A shield for concrete construction comprising a shell to form a cavit in such construction and formed from a single sheet blank and having overlapping ends, said overlapping portions of said ends being provided with oppositely disposed bayonet slots with the inner ends of the bayonet slots in registry with each other when the shield is in its normal shape, said shield being adapted to be temporarily changed in shape whereby the overlapping portions of said ends of the shield are moved relatively to one another and the open ends of the slots are adapted to be brought in registry to permit the insertion of the anchor rod in said shield.

4. In an insert for concrete construction, the combination with an anchor rod, of a wedge-shaped shield comprising a shell of sheet-like material to produce a cavit and having overlapping ends, the, ends 0 said shield having bayonet slots with the inner ends of the slots of the adjacent overlapping portions in registry when the shieldis in its normal shape, said shield being adapted to be compressed whereby the overlapping portions overlap to a greater extent and the open ends of the slots are brought into registry to permit the ready insertion of the anchor bar in the shield.

5. An insert for concrete construction, comprising a shield having its base opened externally of the wall and its sides inclined at an angle to its base and inwardly toward each other, and an anchor rod extending through said shield and having portions extending'obliquely inwardly into the concrete about the shield immediately after the rod extends from out of the shield and also having its outer extremities bent to assume a position substantially perpendicular to the direction of the portion of the rod passing through said shield.

6. An insert for concrete construction comprising a wedge shaped shield adapted to form a cavity in the concrete construction, and an anchor rod extending through a form to maintain the shield against displacement during the placing of the cement.

7. An insert for concrete construction comprising a Wedge-shaped shield adapted to form a cavity in the concrete construction, and an anchor bar passing through said shield and extending at eiher side of the shield inwardly and obliquely into the cement, the outer extremities of the rod being bent to assume a position substantially perpendicular to the direction of the ortion of the rod passing through said shield,

said extremities being pointed and extending beyond the plane of the base of the 15 my hand in presence of two subscribing wit- 20 nesses.

WALTER E. KELLY.

Witnesses:

James I. ELLMANN, J. BARsooK-ELLmNN. 

